PS2 Emulator Status

[emmaus]

i dont understnd anything you are saying. you are misusing certain terms here.a bios isnt hardware like a console, it is a software dumped from the console. you cant buy it as that would be illegal.
also please write the game title and the pcsx2 version you are using, if you want help here.pcsx2 has high emulation accuracy(as far as i know) due to it using the bios and not revere engineering it like most other emus, and i haven't had any problems with the games i have played, except for a few neglgible gfx bug here and there.

if you are able to test games and find bugs, then you must have the bios dumps.

also you shouldnt have problems switching graphics mode, as long as you use the same plugin. find your cpu features(the emu will list it when it starts up), use plugins that correspond to the best feature listed(usually the right most, avx series are best for haswell cpus), then select a rendering mode best suited for your gpu,(opengl for newer nvidia and ati gpu, dx10 for new intel hd (4000 series) and dx9 for the rest). these should produce the least bugs.

post your system specs here.